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Posted on August 28, 2026 written by Jane Paulson
A repair estimate that swaps in unfamiliar part numbers is often the first sign that an insurer is not planning to restore a vehicle to its original condition. Can you demand OEM parts after an accident? Portland drivers often ask this question, and the answer depends on the policy language, Oregon’s regulatory framework, and the assigned fault for the crash.
Whether an insurer ultimately pays for original factory components rather than generic replacements comes down to those same factors, along with what the policy itself covers. At Paulson Coletti Trial Attorneys, we regularly hear from clients who are surprised to learn that a repair estimate was switched to non-factory parts with little explanation. Working with a Portland Car Accident Lawyer can help clarify what your policy requires and what options exist if the two do not line up
Injured in a Car Accident? We Can Help You Seek Compensation
A vehicle owner generally has the right to request original equipment manufacturer parts at any point during repairs, regardless of who caused the crash. Can you demand OEM parts after an accident before the repair shop begins work? Yes, and raising the issue early avoids disputes once panels have already been installed.
The timing matters because once a shop starts using aftermarket components, reversing course can lead to delays and additional costs for the vehicle owner. Requesting OEM parts in writing before repairs begin creates a clear record and gives the insurer a chance to respond before the vehicle is on the lift.
Oregon law does not flatly require insurers to pay for OEM parts in every claim, but it imposes specific limits on the use of aftermarket parts. Under ORS 746.287, an insurer may not require a repair shop to install an aftermarket crash part without the vehicle owner’s consent unless that part has been certified by an independent testing facility as equivalent to the original in fit, finish, function, and corrosion resistance.
This means an insurer cannot simply substitute a lower-cost part without meeting that standard, and the owner retains meaningful say in the outcome. Whether the insurer ultimately covers the higher cost of OEM parts still depends on the policy at issue, including any endorsement purchased for original manufacturer coverage.
Insurers frequently prefer aftermarket parts because they cost less than factory components, and many standard policies do not guarantee OEM coverage unless the policyholder has purchased an endorsement. Under ORS 746.289, any insurer offering a motor vehicle policy with repair coverage must make a crash part warranty available to the insured for parts not made by the original manufacturer, if requested.
That warranty gives drivers a layer of protection even when aftermarket parts are used, though it does not guarantee the same fit or performance as an OEM replacement. Understanding this distinction helps drivers know what questions to ask before a shop begins work, particularly for body panels or components tied to safety systems.
The parts used in a repair can influence more than appearance. OEM components are built to the exact specifications of the original manufacturer, which typically means a closer fit and fewer complications during installation. Aftermarket parts can vary in quality across suppliers, and a poor fit can lead to additional labor or a second round of repairs.
Can you demand OEM parts after an accident when safety features like crumple zones or sensor housings are involved? Many drivers raise this concern because those components are engineered to perform in a collision, and a mismatched aftermarket part may not respond the same way in a future crash.
Contact Our Portland Car Accident Lawyer
If a repair estimate lists aftermarket parts you did not agree to, request a written breakdown of every part and its manufacturer before any work begins. Compare that breakdown against your policy language, since some policies specify OEM coverage for vehicles under a certain age or mileage.
If the estimate does not match what your policy allows, raise the discrepancy directly with the adjuster and ask for a written response explaining the decision. Keeping copies of every estimate, communication, and photograph creates a record that becomes valuable if the insurer is unwilling to correct the estimate. A repair shop can often provide a second estimate reflecting OEM parts for comparison.
A disagreement over repair parts rarely exists in isolation. When a crash causes injuries as well as vehicle damage, the same insurer handling the property claim is often involved in negotiating compensation for medical bills, lost income, and pain and suffering.
An insurer that resists a straightforward parts request may take a similarly aggressive approach toward an injury claim, particularly when liability or damages are contested. Recognizing these patterns early can help a driver understand how the insurer is likely to handle the broader case, not just the vehicle repair, and can shape how much documentation to gather from the outset.
Can you demand OEM parts after an accident, and what happens when the insurer will not budge? At Paulson Coletti Trial Attorneys, we help injured drivers throughout Portland push back against insurers who cut corners on repairs and claims alike, whether the dispute involves a repair estimate or a much larger injury claim.
Call today (503) 226-6361 to speak with a Portland Car Accident Lawyer about your repair dispute, your injury claim, or both.
At Paulson Coletti, a local firm based in Oregon, justice is our mission. As experienced trial attorneys, we fight for injury victims across Oregon and Washington, holding negligent parties accountable. With a proven track record in and out of the courtroom, we are dedicated to securing fair compensation for our clients. We take a client-centered approach, focusing on cases we believe in and delivering results that matter. No fees unless we win-because justice should never come with financial risk.
Paulson Coletti
Trial Attorneys PC
This page has been written, edited, and fact-checked by our team of legal writers in accordance with our editorial guidelines. It has been approved by partners Jane Paulson and John Coletti—respected trial attorneys with decades of experience representing personal injury victims.
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